Durable Board Mount Design: Features a board-mounted 1/2" bimetal disc for stable installation and consistent vibration resistance in high-airflow environments

For technicians performing field maintenance or LP gas conversion

hard starting

While the switch is designed to trip at 130°F

Utica-Dunkirk 26878 Flame Sensor Durable Board Mount Design: FeaturesThe Utica Dunkirk 26878 Flame Sensor is a critical safety component engineered for precision monitoring in high efficiency residential and commercial boilers. As an OEM replacement flame sensor, this part is designed to detect the presence of burner ignition via flame rectification, sending a microamp signal to the integrated control board to maintain gas valve operation. A failing or fouled 26878 boiler part is the primary cause of units that cycle